Magnetic domains and domain wall pinning in atomically thin CrBr₃ revealed by nanoscale imaging.

ABSTRACT: The emergence of atomically thin van der Waals magnets provides a new platform for the studies of two-dimensional magnetism and its applications. However, the widely used measurement methods in recent studies cannot provide quantitative information of the magnetization nor achieve nanoscale spatial resolution. These capabilities are essential to explore the rich properties of magnetic domains and spin textures. Here, we employ cryogenic scanning magnetometry using a single-electron spin of a nitrogen-vacancy center in a diamond probe to unambiguously prove the existence of magnetic domains and study their dynamics in atomically thin CrBr₃. By controlling the magnetic domain evolution as a function of magnetic field, we find that the pinning effect is a dominant coercivity mechan

SUBMITTER: Sun QC 

PROVIDER: S-EPMC8012586 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature